Quote from toe:
Most people with money in equities markets are not traders they are buy&hold investors. Most B&H investor makes money over the very long time frame they are interested in. Thats because diversified long term B&H is a system with a clear positive expectancy. A dunce couldn't buggar it up, but no-one makes money fast out of it
Most B&H investors dont use leverage and as such they can afford something us short term traders cant, they can afford to have a terrible sharpe ratio. Us short term traders using leverage need a smooth equity curve otherwise we're dead.
The reasons most short term leveraged traders lose is because we either overestimate the smoothness of our equity curve and then bet too big. Or we falsely believe our system has an infalible positive expectancy (or both).
Excelent points.
I have tried to get to the bottom of this phenomenon (complete ignorance that is) but my attempts were completely fruitless. So, the mystery is not the markets but the people's inability to understand them.